<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>页面作业</title>
		
		<style>
			#kuang{
				width: 1000px;
				height: 300px;
				border:2px solid gainsboro  ;
			}
			#xian{
				width: 850px;
				height: 0px;
				border: 1px solid gainsboro;
				margin-top: 60px;
				margin-left: 80px;
			}
			
			#d2{
				width: 30px;
				height: 30px;
				border: 1px solid red;
				
			}
			.anniu{
				
			}
			
		</style>
		
	</head>
	<body>
		<div id="kuang"><div id="xian"></div></div>
		<div class="anniu">
			<button><a href="#">1</a></button>
			<button><a href="#">2</a></button>
			<button><a href="#">3</a></button>
			<button><a href="#">4</a></button>
			<button><a href="#">5</a></button>
			<button><a href="#">6</a></button>
			<button><a href="#">7</a></button>
		</div>
	</body>
</html>